Light bar



FIG. 1 is a front elevational view of a light bar showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is an enlarged, top plan view of the light bar of FIG. 1;

FIG. 6 is an enlarged, bottom plan view of the light bar of FIG. 1;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is an enlarged view of portion A in FIG. 7.

The broken lines represent portions of the light bar that form no part of the claimed design. 

CLAIM The ornamental design for a light bar, as shown and described. 